About the Number

21118420

21118419 ← → 21118421

2進数表記:1010000100011110111010100

漢数字表記:二千百十一万八千四百二十

素因数分解:

2 2 × 5 1 × 17 1 × 179 1 × 347 1

素因数の和:552
約数の個数: 48
約数和(自身を含む): 47355840
約数和(自身を除く): 26237420

約数列:
[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 179, 340, 347, 358, 694, 716, 895, 1388, 1735, 1790, 3043, 3470, 3580, 5899, 6086, 6940, 11798, 12172, 15215, 23596, 29495, 30430, 58990, 60860, 62113, 117980, 124226, 248452, 310565, 621130, 1055921, 1242260, 2111842, 4223684, 5279605, 10559210, 21118420]

約数ペア:
[(1, 21118420), (2, 10559210), (4, 5279605), (5, 4223684), (10, 2111842), (17, 1242260), (20, 1055921), (34, 621130), (68, 310565), (85, 248452), (170, 124226), (179, 117980), (340, 62113), (347, 60860), (358, 58990), (694, 30430), (716, 29495), (895, 23596), (1388, 15215), (1735, 12172), (1790, 11798), (3043, 6940), (3470, 6086), (3580, 5899)]

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